Radiator core



Patented Sept. ia i922.

in arte rar a vvnvcnnr SCHREINER, or TOLEDO, omo.

RADIATOR conn.

Application led March 28, 1921. Serial No. 456,301. i

ing to Radiator Core; and l do hereby de-y clare the following tobe a full, clear, and exact description 'of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, whichform apart of this specification.

This invention relates to radiators for `use in connection withthe water cooling systems of internal combustion engines. l u The primary object of my-invention is the provision of a radiator of the class described which is light, simple vland inexpensive in its construction and has its air cellsv so formed and arrangedI as to intercept and deflect a maximum amount lof the air passing through so that practically the full-cooling eliiciency of the air on the walls of the water passages-is 'obtained y A further important feature of the invention is the provision ofv a novelradiatorof the class described, the walls of the water passages of which are free to expand within considerable limits so that freezing of water within the radiator may occur without danger of straining the radiator or springing leaks by opening joints therein.v

A further object of the invention is the simplicity, ease and rapidity with which the parts of the radiator may be assembled and the small amount of solder required to secure the parts together.

The invention is fully described in the followingspecification, and while, in its broader aspect, it is'capable of embodiment in numerous forms, a preferred embodiment thereof is illustrated in the accompanying drawings, in which, f t

Figure 1 is an enlarged fragmentary front or rear elevation of a radiator core; fFig. 2 'is a similar view'thereof'with the parts approximately the size used in practice. I Fig.` 3 is an enlarged central vertical section of a portion of a radiator core taken -transverse to the passage ofthe air therethrough on substantially the line 3-3 in Fig.` 5. Fig.v l is an enlarged horizontal cross-section taken substantially on theline '4e- 4: in Fig.4 1, with the outer spacing strip removed,'and Fig. 5

isa fragment-ary side view of a crimped sheet'metal strip used in the radiator construction.

Arradiator core embodying the .invention comprises a pluralityfof verticallydisposedl laterally spaced flat water tubes vl forming water lpassages 2, and spacing strips 3 interposed betweenthe tubes and cooperating therewith to form air passages la The tube walls and spacing strips are formed of crimped strips Yofsheet metal of substantially the same shape, size and form, the strips rforming the tube walls being nested'together in slightly spaced relation intermediate their vertical or side edges to. form the water passages 2 therebetween, and the spacing strips being placed with the laterallyprotuberant Aportions which are adjacent to their side edges, bearing against the corresponding protuberant .portions of the adjacent tube walls to cooperate therewith lto form inlet and exit openings 5 to and from the registering air passages 4;, respectively, at the front and rearof the radiator core.

f Each sheet metal strip forming theV tubes land spacers 3 is provided lengthwise thereof with two sets of crimps 6 and 7, in the present instance offV-form in cross-section, arranged along the opposite side edges of the strip lwith the crimps of the two sets alternating and taperi-ng inward with respect to the strip edge yalong which disposed,`and losing themselves f'adjacent to the opposite strip edge in the aligned ridges or apex portions `of the other set of crimps.. ln other words, the central longitudinal line of each valley 8 of a crimp ofzone set aligns with the ridge or laterally protuberant or apex portion 9 of a crimp of the other'set, with each crimp valley tapering or gradually diminishing in depth inwardly from its outer end until it loses itself in the aligned ridge of a crimp of the other set. y

vEach water tube is formed by nesting a pair of crimped strips together with the crimp of one strip entering those of a corresponding set ofthe other strip. In order to form a water space 2 between `the strips, which space Yis open at top and bottom and closedalong the side edges thereof, each outfpression or otlsetlO forming a spacing means which is of greatest depth at its center andA gradually loses itself towards the outer l edges of the valley sides, as shown. The

t. tubes.

upper and lower vends of each tube strip are outwardly turned to 'forinend flanges 171, each being intended to lapaflange of an adljoining water tu'be'. and to cooperate there:A l with to bridge and close the respective end of an 4air space 4, The lapping flanges are soldered together?, asare also the side edges of the strips forming the water tubesl `to form al closewater tightedge joint "for the Thespacing strips which are.;o'liythe sainercrimped forni; as the .tube wal-L- strips, 15

are- ,disposed fin spacing'relation between adxjacent tubes l. with the ridges orlateral proxtuberant portions ,l2 of their crimpsbearing at. their outer' 'endsl `against registering ridges i or lateral protuberant portions@ aoitthe tube ywalls,;spaced thereby; Theitubes 'ands'pacing strips are ysecured .together 'in assembled relation bylsolderingl thesa'rne at'` the points ofzcontact; ot'V the ridges 9 andl l2 'otfthe ,dif-1 ferent members, asA shownat 1,3;lhe'eiitrance and exit openingsf tothe airp assages 4, which openings'l are; formed bv ,lassernbling the '.tubesand spacing; strips, as lshown and described,1are necessarily, inthe present ,form ottheorinnos.' ;y 35

. instance,p of ,diamondn-'torm`udue to A,the I Vf' forni ot f crimping employed, but it. will be understood that the invention is not; restricted tothis particular. :torni of openings,l as the :torni may be` changed by,varying; the

It is :evident thaty thlsiconstruction tortilla-4 diator core; providesfwater passages which are of Zigzag formflengthwiseof,the passage of water.. therethrough' so Qthat ,the water :is

f continually battled' iirits-lowf throughwtfhe passages;;that the air Ypassages` are also of zigzag forni-'in averticaladirectionv and'that each inlet opening ;5l at onel side/of the core isioili'set- :from alLoutlet openingsuat ,the` opis deflected bythe tapering-walls of thevalposit'e side-thereof so that the airinstead Voi being permitted tol pass directly through.y la

straightfair cell', as is customarily:thfe,case7 leys andfridgesiof Vthe crimped sheet metal strips`,`th ereby bringing more" air into con'.-k

tact 'with the wall-sot the waternpassages 'than would otherwise be theease and obtain-A i ing the 'full coolingfetliciency ontheiwater tube walls of the airinitspassage throughthe core. `itis 'also'l evident that by rea'son f y.of theypeculiar inanneroi crimping the spacingy andwater tube `stripsall surfaces. with which the airA coacts in its :passage through the radiator corezare angledor inclined'with .respect `toy the normalA direction of. travelqot air through the corefI so as Vtogcontinually its free passage through kthe vzcore. lVith? respectto thegoii-setting-ohthe air openings 5 at lone side .ojthe'l corefrelative to ftherother side, it will benoted that the center of each Y Having thus I claim as new, and desire to securei-byaLetf openingl at one' side alignswith the point of contact 1 3 of two protube'rant portions 9l andl 12 of abuttingy strips so that the air which'vente'rsA eaohopening is deflected upwardor downwardin order to nd its exit .rornthe opposite side of the core,

" Itw'ill be noted thatthe sheet metal strips .forminggthe waterfturbes andv spacing members are all spaced apart exceptV at their front and rear edge portionszso thatthe walls:,`ot the water tubes lare. permitted to ;v freely expand without danger of opening up jointsl or springing leaks should freezing; 1 occur therein,therebygproviding ya radiator`- of the anti-freeze type.l c t j I wish it understood that-my inventionfis notlimitedto anyj specific construction, ar-V rangement`,or-;forni of thel parts,asit is capable of numerousl `ip nodilications, and f changes,.vwithout ,departing frein Vthe spirit.

of theclaims. j, p describediny invention, what ters Ratent, 151,-,

il. A radiatorvcore lhaving sheetinietal strips forming water l passages, j the. strips being nested and each having aseparate set of transversely Vextending crinips,,along and extending inward from/each sideredge thereof and gradually losingthemselves `towani the opposite yedge 4of the stripswith zthe cri'inpsfofone set alternating withthose of the other, ,thef strips, hav-ing their side kedges sie connected to. form a water tight joint and; i the V kportions between the edgesbeing.separated* to forni a water-@passageway between the strips lengthwisethereofp t j, 4 2a A (radiator core` having,` spacedi sheet inetal'strips.connected at the: side edgesto 'form vertical vwater passages andI horizontal air passages between the water passages,gthe strips being termed with successive transversely extending Vgshaped VVcrinups along ies theirside edges,withtheycrirnps alongone I edge ofireachK-strip alternating withfzthose4 of the other edge and;tapering'inwardto grad( nellyy los@V themselves ill thelglld Valleys of the-other set of crirnps, theair passages having diamond shapedv inlet, `and out-let openings' at ytheir frontjand rear sides vvyvith allop' v with all openings the other side.

3, A. radiator core havingJsheet strips forming water passages eachl strip r K 12o opposite side ledges; thereof withl ,thefcriinps havingtwosets vof crimps arranged along of the .two Y sets 1 alternating `and tapering 2in1- .ward and I losing@ themselves adj acent :to y the Opposite Strnedee, the;j strips. being,L nested i' together 'and having: edge :f portions offset y to maintainthe inajon-portiens .otthestrips ,in spaced relationto form aawatenpasseg@ therebetween. Y

4:. A .radiatorcore-- having-crimped; ,p

of metal forming zig-zag water passages l enings in onesidefout of, true register f iso with the. crimps in two sets arranged along opposite edges of each strip and gradually shallowing toward their inner ends and with the valleys of the crimps of one yset losing themselves in the protuberant portions of the crimps of the other set.

5. A radiator core having vertically disposed water tubes of flat form, a spacing strip disposed between adjacent tubes and V-crimped along opposite side edges thereof with the crimps of each set alternating and gradually diminishing in depth toward the opposite edge of the strip to present tapering deflecting surfaces to air passing through the radiator between the strip vand tubes.

6. A radiator core having a plurality of sheet metal strips forming water tubes and spacing members for the tubes, the stripsl being crimped in substantially duplicate fashion along opposite edges thereof with the crimps gradually diminishing in depth inwardly from the respective edges of the strip and alternating with the crimps at the other edge so that the ridge of each crimp of one set aligns with the valley of a crimp of the other set, the ridge portions of the crimps of the tubes and spacing member strips successively abutting at their outer VINCENT SCI-IREINER. 

